“Most of the affected users used modified versions of WhatsApp for Android.”
In many online marketplaces and forums it is possible to access modified versions of WhatsApp, which are not the official ones, and which allow users to use other functions, such as changing the corporate green color or using different emoticons.
These modified versions of WhatsApp are certainly popular, but Facebook has decided to put an end to the permissibility that has prevailed so far in the full range of these applications. The reason? The security of the users can not be guaranteed, since it does not control WhatsApp that comply with privacy standards or with point-to-point encryption of messages.
It is for this reason that it has begun to block users who use them. There are many who are finding a message that says “Your phone number has been banned for the use of WhatsApp. Contact ‘support’ for more help. ” As of that moment, the application is practically unused and it is not possible to send or receive any more messages.
WhatsApp has indicated that they are taking measures to block any account that they believe is violating their Terms of Service, as in this case. Anyway, if you have received a similar message and WhatsApp has blocked your phone number, you do not have to worry too much.